# Annie  Li

> Backend & AI Software Engineer | Java · Spring Boot · Python · FastAPI · Kafka · LLM/RAG | Open to Opportunities

Location: Santa Clara, California, United States
Profile: https://flows.cv/annieli

With a background spanning data engineering and backend software development, I bring hands-on experience building scalable systems using Java, Spring Boot, Python, and FastAPI. I specialize in designing RESTful APIs, data pipelines, and AI-integrated backend services including RAG pipelines and LLM-based workflows using OpenAI API and LangChain. Currently seeking Software Engineer, Backend Engineer, and AI Engineer roles in the Bay Area where I can contribute to high-impact backend and AI infrastructure projects.

## Work Experience
### Software Engineer @ BESHTON SOFTWARE INC
Jan 2024 – Present | Mountain View, California, United States
• Designed and implemented 15+ RESTful APIs and microservices using Java and Spring Boot to support enterprise application integration platforms, improving average service response time by ~30% through query optimization and Redis caching.
• Built backend workflows for an RMA (Return Merchandise Authorization) platform including multi-user role management, configurable approval workflows, and third-party integrations with billing, shipping, and issue-tracking systems.
• Developed document ingestion and processing pipelines supporting PDF parsing, text chunking, embedding generation, and semantic vector search, enabling contextual query capabilities across large unstructured document collections.
• Integrated external AI APIs (OpenAI, Spring AI) into backend services to support LLM-based response generation, structured data extraction, and voice-driven interaction workflows.
• Designed and optimized MySQL and PostgreSQL schemas; implemented indexing strategies and query rewrites that reduced average report generation time by ~25%; enforced validation, logging, and error-handling for system reliability.
• Containerized services with Docker, maintained CI/CD pipelines via Git and GitHub Actions; participated in Agile sprints including sprint planning, code reviews, and cross-functional collaboration.

### Data Engineer @ PING AN INSURANCE(GROUP) COMPANY OF CHINA,LTD
Jan 2019 – Jan 2022 | Guangdong, China
• Built and maintained ETL pipelines processing millions of daily transactional records using Python and SQL, supporting real-time reporting and business intelligence dashboards for internal analytics teams.
• Designed and optimized relational database schemas in PostgreSQL; rewrote high-cost SQL queries and applied indexing strategies, reducing average query execution time by ~35%.
• Developed automated data validation, ingestion, and reconciliation workflows, eliminating manual processing steps and reducing data error rates by over 40% across monthly reporting cycles.


## Education
### Master's degree in Computer Science
Arizona State University

### Bachelor's degree in E-Commerce/Electronic Commerce
Guangdong Pharmaceutical University


## Contact & Social
- LinkedIn: https://linkedin.com/in/annieli23
- Website: https://github.com/annieleen23

---
Source: https://flows.cv/annieli
JSON Resume: https://flows.cv/annieli/resume.json
Last updated: 2026-04-05